My old BMW phatbox died. So I got a VW box from ebay, used my old BMW cable and Blitzsafe adapter, put the BMW firmware in it and put it in the car. The music plays fine but I have a very weird problem. Basically I am unable to control the music from the headunit. For example, when I push 'track forward', the music pauses for a moment, the number on the displays advances but the same song keeps playing. When I hit '4' it prompts 'now browsing genres' but I am unable to select the next genre, again the music just briefly pauses and then continues.
Now here is the totally weird thing: when I select 'random' on the menu, I actually can forward to other songs! As soon as I select one of the numbers other than 1 (for browsing by genre, artist, etc.), random turns off and I am back to being unable to control anything.
I have reflashed the firmware multiple times, tried another DMS but nothing seems to fix it. Anybody has any suggestions?